Dump-car.



No. 873,772. PATENTBD DEG. 17,; 19,07. T.R.MGKNIGHT.-. l

DUMP CAR. APPLIoATIoN FILED sEPT.26.1907.

3 SHEETS-SHEET i.

PATENTED DEG. 17, 1907. T. R. M0KNIGHT.

DUMP GAR. APPLIOATION FILED snrT.zs.19o'/.

3 SHEETS-SHEET 2.

PATENTED DEU. 17, 1907.

T. R. MOKNIGHT.

DUMP GAR. APPLIDATIOF FILED 'SEPT` 26., 1907.

a sums-snm s.

I @Wye/72%? W @722m MMM? li @i il it in entras TEOMAS R. McKNIGlIT, OF AURORA, ILLINOIS, ASSIGNOR TO WESTERN WHEELED SCRAPERA OOMIANY, OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS; v

DUMP-CAR.

Specification or" Letters atent.

Patented Dec. 1.7, 1907.

Application filed September 26.1907- Serisl No. 394,715.

To all whom it may conce-rn.'

Be it known that I, THOMAS R. MCKNIGHT, a citizen of the United States, residingr at Aurora, county of Kane, State of Illinois, have invented certain new and useful Improvements in Bunipars, of which the iol* lowing is a specification, reference being had to the accompanying drawings. v

My invention relates to dump cars of the type having side'doors which are automatically raised when the car is tilted to one side or the other so as to open up the whole side of the car ior the discharge of the load. In cars of this type, the entire load is supported by the loor of the car, making it necessary that the licor be made very strong so as to be capable not only oi `adequately sustaining the load but also ci resisting the twisting and racking strains to which it is subjected in the operation ci the car. For example, if the load is not umformly distributed over the floor of the car, there is more or less of a torsion strain u on the car body, and particularly so when t e load is being dumped. Furthermore, in cars of this type, the side gates or doors of the car can be connected to the car body only at their ends. Consequently it is necessary to malte the doors or sides very strong to resist the strains to which the intermediat portions thereof are subjected.

My present invention has for its object to provide an improved construction of dump car in which the objections above noted are avoided, and a car i roduced the floor of which will be thorougiily bracedso as to enable it to successfully resist the various strains to which it is subjected; also to provide a.

door of which the intermediate portion will be very strongly braced so that it will not yield or spring under the weight. ci the load. I. accomplish this object by the means shown' in the drawings and hereinafter specifically described. i

That which I believe to be new will be pointed out in the claims.

inthe drawings :-.Figure 1 is an end view of my improved car; Fig. 2 is an lunder side y plan vieri of one-halt` oi the bottom ci' the car; Fig. Bis a side View oi one-haii ci the car-body; Fig. '-l is a plan view of one-half oi one oi the sides; Fig. 5 is a section on line 5 5 oi 3; anrhFig. 6 is a section on line 6@ ci A n to the dravvin s l indicates a o g i car-body, and 8 the truck on which it is mounted.

9--10 indicate lthe side gates or doors, which, as shown in Fig. 1, are pivotally connected at their ends with the ends of the car by arms 11-12. Bars 13 connected to the arms 11 and to bars 14 serve to causethe doors to rise out of operative position when The car body is ivotally supported on the. truck by means o supports 15 arranged centrally underthe car bo be dum ed at either side of the car.

16 in 'Cates' the usual side chains by which the car body is held in its horizontal or normal position whenthe load is being trans- 'ported. These features vform no part or my present invention and as the construction is well understood by those familiar with the herein. y

The construction of the 'bed or platform in Fig. 2. As therein shown, there 1s` a centrai longitudinal channel-iron 17 which extends from end to end of the car on the under side thereof, said channel-iron occupying an inverted position, as shown in Fig. 1.A To this channel-iron, which forms the center sill of the bed, are .secured the pivotal su lports 15 in any suitable way, 'but prefera y' by means of filler-blocks 18 secured in the chanlnel-iron at the pro er points.

19 indicates ang e-ircns which extend lon thereof and the channel-iron 17.

` 2() indicates angle -irons which exten transversely of the car near the ends thereof and are iixedly secured t the' end portions of the angle-irons 19. l said angle-irons 2O are bent so that they pass immediatel under and bear against -the flanges of t e channel-iron 17, and they are connected thereto by bolts 21.

in the form of an X and having their ends secured to the angle-ironslg, said braces being also bent to extend under the channel-iron yThe braces 22-23 are placed about midway between the center of Ithe carbody and the ends thereof, and, together wuth the braces 1 portion` of the car platform.

the car body is tilted to one side or the other.

As shown in Fig. 1-,

22-23'indicate braces connected togetherl so that the load may art they will not be described more in detail which forms the floor of the car is best shown gitudinally of the car between the side' edges A -17 to which they also are secured by bolts 24. 5

26p serve to stiden and support thecentral 25-26 indicate angle-irons which under- .lie theside edges of the car platform, as`

shown in Figs. 1 and 2. Said angle-irons are connected near the longitudinal center of the car by `angle-irons 27 which extend transversely of the car body and are rigidly secured not only to the angle-irons 25-26 but also to theyangle-irons 1.9 and to the channellron 17 under Which they pass, as shown in Figs. 1 and y2. Itwill thus be seen that the frame of the car platform is thoroughly braced in all directions and is also su ported or trussed to sustain the load, the ange-irons 20, 22, 23 and 27 all serving as trusses.

- The floor of the car body is made up of metal sheets 28 secured upon the angle-irons `which compose the frame; as already described, and connected together by plates 29 riveted to the meeting edges of the severall sheets 28. v

3() indicates cushion plates of wood or other suitable material secured to the angleirons 19 in position to strike suitable cush- 'angle-irons 32-33 'serveY to connect the horizontal plate 34 to the upright plate 31|. The

horizontal plate is also provided, near its outer edge, With angle-irons 35.-36, s'aid angle-'irons serving to further brace Said plate 34. As best shown in Fig. 4, the plate 34 is Wider at the central portion` of the car than at the ends, being tapered off toward the ends, Where .the strains to which the door is subjected are not sogreat. A similar series.

ofsupports and braces isl rovided near' the lower'edge of the door, as s own in Fig. 5.

It Willbe seen'that the lower margin of the plate 31 is provided Witi.l a horizontal plate 37 connected 4with the'door by o positely- A disposed angle-irons 38-39, and a so having angleeirons 40-41 near its outer margin..

'.The plate 37 also tapered toward the ends of the car, in the manner shown in Fig. `4.

YThe door is thus-braced' most strongly' intermediately Where the greatest strength isrre- 5 5.

quired, and this is accomplished without increasing the weight 'of the door to an objectionable extent. At intervals the door is provided with vertical angle-irons 42, as

shown 4in Fig. 3, which serve still further to brace and strengthen it.

'lethe center sillis best made lin the 'form of an inverted .channel-iron, the term 4channel-iron as employed in theclaims,

should be construed-'not only as meaning a wams channel-iron proper but also any other suitable structural shap'e for the center sillof the bed.

'What I claim "asmy invention and desire to secure by Letters Patent is 1. A dump car platform comprising a frame formed of a center sill extending-longi tudinally thereof, said center sill being composed of a channel-iron longitudinal angleirons at the sides of saidy center sill, andf.

cross braces` vconnected at their ends with said angle-irons andextending under said center sill, and a floor secured upon said frame.

2. A dumpl car-platform comprising a frame formed of a center sill extending longitudinally thereof, said center sill being composed of a channel-iron longitudinal angleirons at the sides of said'center sill, and cross braces connected at their ends with said angle-iron and extending under said center sill, the cross braces being secured to said center sill, and a floor secured upon said frame.

3. A dum i car platform comprising aframe forme( of a center sill extending longitudinally thereof,l longitudinally-extendin angle-irons forming the side edges of sai frame, intermediately-dis osed angle-irons extending longitudinally o said frame, cross braces connecting said first-mentioned angleirons, and cross braces connecting said inter-v mediate angle-irons, all ofsaid cross bracesl extending` under said center sill, and a floor secured upon said frame.

4. A dump car platform comprising a frame com osed of an inverted channel-iron extending ongitudinally at the center thereof, intermediate longitudinally-disposed angle-irons, cross braces connecting said intervmediate angle-irons, said braces being -secured together in the. form lof an X and extendin channe -iron, marginalsupports .for the frame', and cross braces connecting saidmar-` ginal supports, and floor plates secured to said frame.

5. A dump car comprising a frame having a longitudinally-extending inverted vchanneliron arranged centrally thereof, pivotal supports connected to said channel-iron, longiunder and being secured to said 1 yiio tudinally-dis osed braces for the side por- 'tions' of the ame., and cross braces 'extendin under the channel-non and connected to sald longitudinal braces, `and a ioor secured upon said frame.

6. A dump car comprising a frameghaving a longitudinally-extending inverted channely iron arranged centrally thereof, pivotal supports connected to said channel-iron, longi- L tudinally-disposed braces for the side portions of the frame, and cross braces extend sind .longitudinal braces, said cross ybraces ing under the channel-iron and connected to plates together.

' 9; `A door for dump cars composed of an, upright plate, horizontal plates extendingsvsms comprising angleirons secured to said channel-iron, and a floor secured upon said frame. 7. A door for dump cars composed of an upright plate horizontal plates extending longitudinally near i thev -u per and lower margins thereof, 1andang e-irons seeurin said horizontal andupright platesl to ether. 8. A door for dump-'ears composer? of an upright plate,horizontal plates extending longitudinally near the-upper and lower margins thereof,- said'l horizontal plates hav ing oppositely-disposed angle-irons dsecured theretov at their outer margins,l and angleirons -secwfng saidvhorizontal and upright longitudinally near margins thereof, said horizontal plates being tapered toward the end'portions of the, ear, and angle-irons securing vsaid horizontal and upright plates together.

the upper and lower f 10c A door for dump carscomposed of an upright plate, horizontal plates extending longltudinally near the upper and lower margins thereof, said horizontal plates being tapered towardthe. end portions of the car and having oppositely-dlsposed angle-irons secured thereto at their outer margins, and angle-irons securing said horizontal and uprig t plates together.

11. A door for dump upright plate, horizontal longltudinally near the upper and lower margins thereof, 'an 'le-irons securing said horizontal and upright lates together, and vertically-disposed ang e-irons secured at intervals at the `outer sides of said vertical plates.

THOMAS R. MCKNIGW Witnesses: l

WM. D. FOULKE, M. A. SPERRY.

cars composed of an plates extending 

